Stock Photo - Astronaut John L. Phillips (foreground), Expedition 11 NASA ISS science officer and flight engineer; and cosmonaut Sergei K. Krikalev, commander representing Russia's Federal Space Agency, don their Russian Sokol spacesuits prior to their launch aboard the Soyuz TMA-6 spacecraft from the Baikonur Cosmodrome in Kazakhstan for a two-day trip to the International Space Station (ISS). The launch occurred at daybreak on April 15, 2005 (Kazakhstan time). Krikalev and Phillips will spend six months on the Station, replacing Expedition 10 Commander Leroy Chiao and Flight Engineer Salizhan Sharipov, while European Space Agency (ESA) astronaut Roberto Vittori (out of frame) of Italy will spend eight days on the ISS under a commercial contract between ESA and the Russian Federal Space Agency, returning to Earth with Chiao and Sharipov on April 25.